The format typically looks like this: XXXXX-XXXXX-XXXXX-XXXXX-XXXXX Where to Find Your Product Key
A product key is a 25-character alphanumeric code used to authenticate and activate your software. It ensures that your copy of Office is genuine and has not been used on more devices than the Microsoft Software License Terms allow. product key for microsoft office
Common errors include mistaking "8" for "B" or "0" for "O." product key for microsoft office